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CVE-2026-96512

7.8 high exploit ×2 SSVC exploitation: none Published
NVD · CVE.org

A flaw was found in sudo. When sudoers rules use NOTBEFORE or NOTAFTER time-based access restrictions with timestamps that omit the trailing 'Z' timezone indicator, the time evaluation relies on the TZ environment variable inherited from the calling user. Because sudo is a setuid-root program, an unprivileged local user can set TZ to an extreme timezone offset to shift the authorization window by up to approximately 25 hours, causing expired rules to be treated as valid. This allows the user to execute commands outside the intended time window. Authentication is not bypassed; only the time-based authorization check is affected.

Fix

Nothing published yet: no patch, vendor advisory or mitigation reference on NVD, no vendor advisory in the News for this CVE, not in CISA's KEV, no fixed package version. BaselineWatch does not guess at one.

Public exploits 2

Each line links to the index that lists it, never to exploit code. Exploit-DB's "verified" and a Metasploit rank of good or better count as verified; a PoC-in-GitHub entry is a repository's claim.

Change history 17

  1. StatusAwaiting Analysis → PublishedNVD modified 2026-10-26 13:55
  2. References+1 references (now 14)NVD modified 2026-10-26 14:16
  3. StatusPublished → Awaiting AnalysisNVD modified 2026-10-26 14:16
  4. StatusAwaiting Analysis → PublishedNVD modified 2026-10-22 05:49
  5. StatusPublished → Awaiting AnalysisNVD modified 2026-10-22 06:17
  6. StatusAwaiting Analysis → PublishedNVD modified 2026-10-22 05:49
  7. References+1 references (now 13)NVD modified 2026-10-22 06:17
  8. StatusPublished → Awaiting AnalysisNVD modified 2026-10-22 06:17
  9. StatusAwaiting Analysis → PublishedNVD modified 2026-10-21 19:52
  10. References+1 references (now 12)NVD modified 2026-10-21 20:17
  11. StatusPublished → Awaiting AnalysisNVD modified 2026-10-21 20:17
  12. StatusAwaiting Analysis → PublishedNVD modified 2026-10-21 07:27
  13. References+1 references (now 11)NVD modified 2026-10-21 12:17
  14. StatusPublished → Awaiting AnalysisNVD modified 2026-10-21 12:17
  15. StatusAwaiting Analysis → PublishedNVD modified 2026-10-21 07:27
  16. References+1 references (now 10)NVD modified 2026-10-21 08:16
  17. First seenCVSS 7.8NVD modified 2026-10-14 19:17

Affected (CPE criteria) 0

NVD has not attached CPE configurations yet.

References 14